Data Sheet
March 25, 2008
EQD075 Series Single Output: Eighth Brick Power Modules:
18-60Vdc Input; 3.3 to 5.0Vdc Output; 75W
Characteristic Curves
The following figures provide typical characteristics for EQD075A at T
A
= 25
O
C
Io = 20A
INPUT CURRENT, I
IN
(A)
5
4
Io = 10A
3
Io = 0.05A
2
1
0
15
25
35
45
55
65
INPUT VOLTAGE, V
IN
(V)
ON/OFF VOLTAGE
V
On/off
(V) (2V/div)
V
O
(V) (1V/div)
6
O
UTPUT VOLTAGE
TIME, t (2 ms/div)
Figure 1. Typical Input characteristics at room
temperature (V
o
= 3.3V).
95
Figure 4. Typical Start-Up Characteristics from
Remote ON/OFF (V
o
= 3.3V, I
o
= 20A, V
in
= 48V).
OUTPUT VOLTAGE
OUTPUT CURRENT
90
EFFICIENCY,
η
(%)
85
80
Vin = 60V
Vin = 48V
75
70
0
5
10
15
20
OUTPUT CURRENT, I
O
(A)
I
O
(A) (5A/div)
Vin = 24V
V
O
(V) (200 mV/div)
Vin = 18V
TIME, t (0.2 ms/div)
Figure 2. Typical Converter Efficiency versus Output
Current at room temperature (V
o
= 3.3V).
Figure 5. Transient Response to a Dynamic Load
Change from 50% to 75% to 50% of full load
(3.3V@20A) at V
in
= 48V.
OUTPUT VOLTAGE
OUTPUT CURRENT
V
O
(V) (200 mV/div)
I
O
(A) (5A/div)
OUTPUT VOLTAGE
V
O
(V) (50mV/div)
TIME, t (1
μs/div)
TIME, t (0.2 ms/div)
Figure 3. Typical Output Ripple and Noise at V
o
=
3.3V and I
o
= 20A.
Figure 6. Transient Response to a Dynamic Load
Change from 50% to 75% to 50% of full load
(3.3V@20A) at V
in
= 24V.
LINEAGE
POWER
6
LINEAGEPOWER [ LINEAGE POWER CORPORATION ]
